CD: A025 $17.99. According to ancient Chinese medical theory, there are two causes for disease. Internal, which is brought about by an imbalance in a person's psychomental state, and external, which comes as a result from changing atmospheric & climatic conditions. Invigorating the Spirit, Sheng Hua, is based on The Origin of Disease in The Yellow Emperor's Classic of Internal Medicine. Designed to invigorate dull spirit